Die And Mould
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Analysis of the Dynamic Stability of Ball-End Milling of AISI D6 Hardened Steel
AISI D6 hardened steel is a difficult to cut material that it is employed in mould and die manufacturing where long ball-end mills are frequently required to machine deep cavities. This condition can lead to excessive vibration between tool and workpiece resulting in a poor surface finishing and reduced tool life. This work analyses the dynamic stability of
Mat. Res.. Publicado em: 02/12/2019
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2. Using advanced CAM-systems for optimized HSC-machining of complex free form surfaces
High speed cutting (HSC) offers the opportunity to significantly reduce machining times as well as to minimize manual rework for complex free form surfaces in the die and mould making industry. To achieve the best results it is also necessary to apply HSC-suitable machining strategies to perform optimal high speed milling operations. This paper presents a me
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2007-09
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3. Roughness study for flat surfaces milling by ball nose tools / Estudo da rugosidade de superfícies planas usinadas por fresas de topo esférico
In die mould production sequence, the milling is the most important factor, considering both the programming costs and the manufacturing time. In fact, the application of CAD/CAM/CNC and HSC technologies is a basic competitiveness edge. The optimized use of these technologies will determine the strategic advantage for industries. The finishing by milling is
Publicado em: 2007
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4. Evaluation of the accuracy of stone dies obtained from a polyether mould (through shell tecnique) and made by pouring in different times or by successive pourings in a same mould. / Avaliação da fidelidade de troquéis de gesso obtidos de um poliéter (com a técnica do casquete) e confeccionados ou em diferentes momentos ou através de subseqüentes vazamentos num mesmo molde
The accuracy of moulds obtained through shell technique from a polyether (Impregum Soft) was indirectly evaluated, by direct evaluation of the accuracy of stone dies. A standard crown (extremely well fitted to the standard die, both presenting their oclusal portions at the same level) was used to verify the height difference between itself and each obtained
Publicado em: 2005
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5. Toroidal milling of hardened SAE H13 steel
It is estimated that around 65% of the cost of a die or mould is related to the machining processes. Moreover, the literature says that 70% of the time spent in the machining processes of this kind of parts is used in finishing and semi-finishing operations. The high complexity of the machined surfaces makes mandatory the use of ball nose tools, with large o
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2004-03